Plant explosion near Waco

April 18, 2013 |Houston Chronicle web staff

Rescue workers searched rubble that witnesses compared to a war zone early Thursday for survivors of a fertilizer plant explosion in a small Texas town. The blast injured more than 160 people and killed between five and 15.

Chip Somodevilla/Getty Images

33of77

WEST, TX - APRIL 18: West High School senior Mackenzie Wernet (C) is embraced by fellow students and friends after praying for the victims and survivors the day after the West Fertilizer Company explosion April 18, 2013 in West, Texas. Wernet's home was destroyed when the fertilizer company caught fire and exploded, injuring more than 160 people and leaving damaged buildings for blocks in every direction.

Chip Somodevilla/Getty Images

33of77

WEST, TX - APRIL 18: West High School senior Mackenzie Wernet (C) is embraced by fellow students and friends after praying for the victims and survivors the day after the West Fertilizer Company explosion April 18, 2013 in West, Texas. Wernet's home was destroyed when the fertilizer company caught fire and exploded, injuring more than 160 people and leaving damaged buildings for blocks in every direction.